/**
* @author AlbertDarren
* @contact 2563491540@qq.com
*/
#include <cstdio>
#include <cstring>
using namespace std;
int main_45()
{
    char str1[101];// a null terminating charactor,the maximum length is 101
    char str2[101];
    scanf("%s%s",str1,str2);
    strcat(str1,str2);
    printf("%s",str1);
	return 0;
}
